In sense investing is gambling. But at least you can make informed decision on what you think go up or down in value based on real world. Where as crypto is purely speculative with no actual tie to economy or anything.

What does make it different than let's say Gold?

Bitcoin has a really good and nice use case, you can move millions of dollars between countries with words in your head. No customs will ever find out. Can Gold, diamonds or even paper dollars do that?

You can hit met with the ethics subject but another matter.